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Vitor PamplonaandClaude Opus 4.8
de1362561f
The debug-only MemoryUsageChip ("X/YMB" top-bar indicator, gated on
isDebug) polls collectMemorySnapshot() every 2s from a produceState
block, which runs on the main thread. That reads coil3.disk.DiskLruCache
.size(), a @Synchronized call. On cold start the Coil disk cache holds
that monitor for several seconds (journal init + the burst of image
writes from the initial relay event flood), so the UI thread blocked
inside size() — the "Loading account" frame couldn't repaint until it
returned. Profiling showed a single ~8s render frame and the UI thread
"blocking from coil3.disk.DiskLruCache.size()".
Collect the snapshot via withContext(Dispatchers.IO) so the synchronized
read blocks a background thread instead of the UI. The "Loading account"
stall on cold start drops from ~15-20s to ~5s. Debug-only path, so this
never affected release builds.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>